import test from 'node:test'
import assert from 'node:assert/strict'
import { buildApiCatalog, matchApiEndpointCandidates, matchApiEndpoints } from '../src/lib/api-docs.js'
import { buildBddContract, renderBddContract } from '../src/lib/bdd.js'
import { buildMaintenanceContract } from '../src/lib/maintenance.js'
import { buildAppMap, buildAppMapWithGuides, buildPageContract, extractRegions, inferRegionSpec, parsePrototypeGuide, summarizeHtml, validatePageContract } from '../src/lib/html.js'

test('summarizeHtml extracts user-visible contract evidence', () => {
  const summary = summarizeHtml(`
    <title>Orders</title>
    <main>
      <h1>Orders</h1>
      <form><label>Email</label><input name="email" required><button>Save</button></form>
    </main>
  `)

  assert.equal(summary.title, 'Orders')
  assert.deepEqual(summary.labels, ['Email'])
  assert.deepEqual(summary.buttons, ['Save'])
  assert.equal(summary.inputs[0].name, 'email')
  assert.equal(summary.inputs[0].required, true)
})

test('extractRegions falls back to a single page region', () => {
  const regions = extractRegions('<h1>Hello</h1><p>World</p>')

  assert.equal(regions.length, 1)
  assert.equal(regions[0].id, 'page-1')
})

test('inferRegionSpec maps forms to VForm', () => {
  const [region] = extractRegions('<main><form><input name="q"><button>Search</button></form></main>')
  const spec = inferRegionSpec(region)

  assert.equal(spec.vuetifyComponent, 'VForm')
  assert.deepEqual(spec.uiContract.primaryActions, ['Search'])
})

test('buildPageContract creates page-level UI contract', () => {
  const html = `
    <main>
      <h1>Orders</h1>
      <form><label>Email</label><input name="email" required><button>Search</button></form>
      <table><thead><tr><th>Status</th></tr></thead><tbody><tr><td>Pending</td></tr></tbody></table>
    </main>
  `
  const regions = extractRegions(html)
  const domSummary = summarizeHtml(html)
  const contract = buildPageContract({
    page: 'orders.html',
    source: '/prototype/orders.html',
    html,
    regions,
    domSummary,
    screenshotPath: '.ht/cache/prototype/orders/desktop-default.png'
  })

  assert.equal(contract.page, 'orders.html')
  assert.equal(contract.forms[0].fields[0].required, true)
  assert.deepEqual(contract.tables[0].headers, ['Status'])
  assert.ok(contract.vuetifyComponents.includes('VTable'))
})

test('buildPageContract infers legacy table field labels and action semantics', () => {
  const html = `
    <main>
      <form>
        <table>
          <tr><th>場地</th><td><select name="rom_id"><option>R001 大禮堂</option></select></td></tr>
          <tr><th>查詢起日</th><td><input name="startDate" maxlength="7"></td></tr>
        </table>
        <input type="button" value="查詢">
      </form>
      <table><tr><th>申請單號</th><th>操作</th></tr><tr><td>A001</td><td><input type="button" value="刪除"></td></tr></table>
    </main>
  `
  const contract = buildPageContract({
    page: 'query-room.html',
    source: '/prototype/query-room.html',
    html,
    regions: extractRegions(html),
    domSummary: summarizeHtml(html),
    screenshotPath: null
  })

  assert.equal(contract.forms[0].fields[0].label, '場地')
  assert.deepEqual(contract.forms[0].fields[0].options, ['R001 大禮堂'])
  assert.equal(contract.forms[0].fields[1].maxLength, '7')
  assert.equal(contract.actions.find((action) => action.label === '查詢').actionType, 'search')
  assert.equal(contract.actions.find((action) => action.label === '刪除').scope, 'rowAction')
  assert.equal(contract.tables[0].role, 'searchTable')
  assert.equal(contract.tables[1].role, 'resultTable')
})

test('buildPageContract keeps page actions out of row actions', () => {
  const html = `
    <main>
      <input type="button" value="修改密碼" onclick="changePassword()">
      <input type="button" value="列印" onclick="window.print()">
      <table><tr><th>申請單號</th><th>操作</th></tr><tr><td>A001</td><td><input type="button" value="刪除"></td></tr></table>
    </main>
  `
  const contract = buildPageContract({
    page: 'applications-list.html',
    source: '/prototype/applications-list.html',
    html,
    regions: extractRegions(html),
    domSummary: summarizeHtml(html),
    screenshotPath: null
  })

  assert.equal(contract.actions.find((action) => action.label === '修改密碼').scope, 'formAction')
  assert.equal(contract.actions.find((action) => action.label === '列印').scope, 'formAction')
  assert.equal(contract.actions.find((action) => action.label === '刪除').scope, 'rowAction')
})

test('validatePageContract reports evidence mismatches', () => {
  const report = validatePageContract({
    textSamples: ['Missing'],
    actions: [{ label: 'Save' }],
    forms: [],
    vuetifyComponents: ['VContainer']
  }, {
    textSamples: ['Orders'],
    buttons: ['Search'],
    labels: []
  })

  assert.equal(report.requiresHumanReview, true)
  assert.match(report.warnings.join('\n'), /Missing/)
  assert.match(report.warnings.join('\n'), /Save/)
})

test('buildAppMap classifies auth, shell references, and feature pages', () => {
  const prototypeDir = '/repo/prototype'
  const specs = [
    buildSpec('/repo/prototype/portal/login.html', '<main><input type="password" name="pwd"><button>登入</button></main>'),
    buildSpec('/repo/prototype/portal/app-layout.html', '<main><button>隱藏選單</button><button>登　　出</button></main>'),
    buildSpec('/repo/prototype/venue/applications-list.html', '<main><h1>我的申請紀錄</h1><table><tr><th>申請單號</th></tr></table><button>查詢</button></main>')
  ]

  const appMap = buildAppMap(specs, prototypeDir)

  assert.equal(appMap.routes.find((route) => route.prototype === 'portal/login.html').kind, 'auth')
  assert.equal(appMap.routes.find((route) => route.prototype === 'portal/login.html').layout, 'template-auth')
  assert.equal(buildAppMap([
    buildSpec('/repo/prototype/portal/forget-password.html', '<main><h1>忘記密碼</h1><input name="idno"><button>發送至信箱</button></main>')
  ], prototypeDir).routes[0].targetRole, 'forgot-password')
  assert.equal(appMap.routes.find((route) => route.prototype === 'portal/app-layout.html').kind, 'legacy-shell-reference')
  assert.equal(appMap.routes.find((route) => route.prototype === 'portal/app-layout.html').usePrototypeContent, false)
  assert.equal(appMap.routes.find((route) => route.prototype === 'venue/applications-list.html').kind, 'feature-page')
  assert.equal(appMap.routes.find((route) => route.prototype === 'venue/applications-list.html').layout, 'template-app')
  assert.equal(appMap.modules.find((module) => module.name === 'venue').kind, 'feature-module')
})

test('buildAppMap enriches routes with prototype markdown guide entries', () => {
  const prototypeDir = '/repo/prototype'
  const guide = parsePrototypeGuide('venue.md', `
    # Venue 雛型導覽

    | 雛型檔 | 舊 JSP 來源 | 舊 PB NVO 來源 | 對應 Vue view（M9） |
    | --- | --- | --- | --- |
    | [\`query-room.html\`](venue/query-room.html) | \`zte_pro/zte451_02.jsp\` + \`zte451_02_1.jsp\` | \`n_zte451.of_zte451_02\` / \`of_zte451_02_1\` | \`RoomQueryView.vue\` |

    ## 舊系統整體流程

    \`\`\`text
    [使用者] 點 menu ZTE451
        → zte451_choose.jsp
                ① 場地查詢 → zte451_02.jsp → of_zte451_02 (場地下拉 + 日期)
                              ↓ 「查詢」
                           zte451_02_1.jsp → of_zte451_02_1 (回 HTML：每日可借節次)
    \`\`\`
  `)
  const appMap = buildAppMapWithGuides([
    buildSpec('/repo/prototype/venue/query-room.html', '<main><h1>全校場地查詢</h1><button>查詢</button></main>')
  ], prototypeDir, [guide])
  const route = appMap.routes[0]

  assert.equal(appMap.guideSources[0].source, 'venue.md')
  assert.equal(route.evidence.prototypeGuide, 'venue.md')
  assert.equal(route.guide.legacyJsp, 'zte_pro/zte451_02.jsp + zte451_02_1.jsp')
  assert.equal(route.guide.legacyPb, 'n_zte451.of_zte451_02 / of_zte451_02_1')
  assert.equal(route.guide.targetView, 'RoomQueryView.vue')
  assert.equal(appMap.guideSources[0].legacyFlowCount, 1)
  assert.equal(appMap.legacyFlows[0].tasks[0], '場地查詢')
  assert.equal(route.guide.flowRefs[0].tasks[0], '場地查詢')
  assert.deepEqual(route.guide.flowRefs[0].matchedKeys, ['zte451_02.jsp', 'of_zte451_02', 'zte451_02_1.jsp', 'of_zte451_02_1'])
  assert.equal(route.guide.flowRefs[0].nodes[0].nodeType, 'query')
})

test('parsePrototypeGuide attaches checklist items to guide entries', () => {
  const guide = parsePrototypeGuide('venue.md', `
    # Venue

    | 雛型檔 | 舊 JSP 來源 | 對應 Vue view |
    | --- | --- | --- |
    | [\`apply-room.html\`](venue/apply-room.html) | \`legacy/apply.jsp\` | \`RoomApplyView.vue\` |

    ### apply-room.html vs legacy

    - [ ] 活動名稱必填
    - [ ] 使用節次：14 個 checkbox
  `)

  assert.deepEqual(guide.entries[0].checklist, ['活動名稱必填', '使用節次：14 個 checkbox'])
})

test('parsePrototypeGuide extracts legacy flow references for matched entries', () => {
  const guide = parsePrototypeGuide('venue.md', `
    # Venue

    | 雛型檔 | 舊 JSP 來源 | 舊 PB NVO 來源 |
    | --- | --- | --- |
    | [\`apply-room.html\`](venue/apply-room.html) | \`zte_pro/zte450_01.jsp\` + \`zte450_med01.jsp\` | \`n_zte450.of_zte450_01\` / \`of_zte450_med01\` |

    ## 舊系統整體流程

    \`\`\`text
    [使用者] 點 menu ZTE450
        → zte450_choose.jsp
                ① 場地申請 → zte450_00.jsp?ls_stat=1 → of_zte450_00 (回 HTML 表單：身份+日期+stat)
                              ↓ 「我要借用」
                           zte450_01.jsp → of_zte450_01 (回 HTML 表單：5 志願 + 14 節次)
                              ↓ 存檔
                           zte450_ins.jsp → of_zte450_ins → 寫 s55_app_mst + s55_app_dtl
    \`\`\`
  `)

  assert.equal(guide.legacyFlows.length, 1)
  assert.equal(guide.entries[0].flowRefs[0].tasks[0], '場地申請')
  assert.ok(guide.entries[0].flowRefs[0].nodes.some((node) => node.nodeType === 'precondition'))
  assert.ok(guide.entries[0].flowRefs[0].nodes.some((node) => node.jsp.includes('zte450_01.jsp')))
})

test('buildApiCatalog parses generic markdown API docs and matches routes', () => {
  const catalog = buildApiCatalog([
    {
      source: 'apps/backend/API.md',
      markdown: `
        ## Orders Module

        | 方法 | 路徑 | 說明 | 授權 |
        | --- | --- | --- | --- |
        | GET | \`/api/v1/orders\` | 查詢訂單 | Authorize |
      `
    },
    {
      source: 'apps/backend/API_Manual.md',
      markdown: `
        ## 5. Orders API

        ### 5.1 新增訂單

        \`\`\`text
        POST /api/v1/orders
        \`\`\`

        Request：

        \`\`\`json
        { "orderName": "Demo", "items": [{ "sku": "A001", "qty": 1 }] }
        \`\`\`

        Response：

        \`\`\`json
        { "orderNo": "O001" }
        \`\`\`

        欄位規則：

        | 欄位 | 規則 |
        | --- | --- |
        | \`orderName\` | 必填 |
      `
    }
  ])

  assert.ok(catalog.endpoints.some((endpoint) => endpoint.id === 'POST /api/v1/orders'))
  assert.equal(catalog.fieldRules[0].field, 'orderName')
  const matches = matchApiEndpoints({
    prototype: 'orders/apply.html',
    page: 'apply.html',
    module: 'orders',
    title: '訂單申請',
    guide: { targetView: 'OrderApplyView.vue' },
    evidence: { actions: ['存檔'], textSamples: ['訂單'] }
  }, catalog)
  assert.equal(matches[0].path, '/api/v1/orders')
})

test('matchApiEndpointCandidates narrows chooser and print pages', () => {
  const catalog = buildApiCatalog([{
    source: 'apps/backend/API.md',
    markdown: `
      | 方法 | 路徑 | 說明 |
      | --- | --- | --- |
      | GET | \`/service/api/v1/venue/applications/rooms\` | 查詢我的場地申請 |
      | POST | \`/service/api/v1/venue/applications/rooms\` | 新增場地借用申請 |
      | GET | \`/service/api/v1/venue/applications/rooms/{appNo}/print-view\` | 取得場地申請列印資料 |
      | GET | \`/service/api/v1/venue/rooms\` | 取得場地清單 |
    `
  }])

  const chooser = matchApiEndpointCandidates({
    prototype: 'venue/apply-choose.html',
    page: 'apply-choose.html',
    module: 'venue',
    evidence: { actions: ['場地申請'], textSamples: ['場地設備借用申請'] }
  }, catalog)
  const print = matchApiEndpointCandidates({
    prototype: 'venue/apply-room-print.html',
    page: 'apply-room-print.html',
    module: 'venue',
    evidence: { actions: ['列印'], textSamples: ['場地申請表列印'] }
  }, catalog)

  assert.deepEqual(chooser.matches.map((endpoint) => endpoint.usage), ['lookup'])
  assert.deepEqual(print.matches.map((endpoint) => endpoint.usage), ['print'])
})

test('buildMaintenanceContract recommends generic templates from evidence', () => {
  const spec = buildSpec('/repo/prototype/orders/apply.html', `
    <main>
      <h1>訂單申請</h1>
      <form>
        <table>
          <tr><th>訂單名稱</th><td><input name="orderName"></td></tr>
          <tr><th>明細</th><td><select name="items"><option>A001</option></select></td></tr>
        </table>
        <input type="button" value="存檔">
      </form>
    </main>
  `)
  const route = {
    kind: 'feature-page',
    prototype: 'orders/apply.html',
    page: 'apply.html',
    guide: { targetView: 'OrderApplyView.vue' }
  }
  const contract = buildMaintenanceContract({
    route,
    spec,
    apiMatches: [{ method: 'POST', path: '/api/v1/orders', description: '新增訂單' }]
  })

  assert.equal(contract.pageKind, 'application')
  assert.equal(contract.recommendedTemplate, 'master-detail-c')
  assert.equal(contract.dataModel.primaryEntity, 'OrderApply')
})

test('buildMaintenanceContract extracts business rules and row action status rules', () => {
  const spec = buildSpec('/repo/prototype/venue/applications-list.html', `
    <main>
      <table>
        <tr><th>申請單號</th><th>狀態</th><th>操作</th></tr>
        <tr><td>A001</td><td>審核中(Z)</td><td><input type="button" value="修改"><input type="button" value="刪除"><input type="button" value="列印"></td></tr>
        <tr><td>A002</td><td>已核准(Y)</td><td>aprv≠'Z' 修改/刪除 disabled</td></tr>
      </table>
    </main>
  `)
  spec.prototypeGuide = {
    checklist: [
      "操作按鈕：修改 / 刪除 / 列印（aprv_yn!='Z' 時前兩者 disabled，舊系統 UI 用顯示與否）",
      '設備明細（最多 15 項）：每行設備下拉 + 數量 + 移除',
      '截止日（asOfDate；不填用今天）',
      'JS 驗證：home_phone 不可空白、IsNumeric 檢查、email 含 @'
    ]
  }
  const contract = buildMaintenanceContract({
    route: {
      kind: 'feature-page',
      prototype: 'venue/applications-list.html',
      page: 'applications-list.html',
      guide: { targetView: 'ApplicationsListView.vue' }
    },
    spec,
    apiMatches: []
  })

  assert.equal(contract.rowActions.find((action) => action.actionType === 'edit').enabledWhen, "aprvYn === 'Z'")
  assert.equal(contract.rowActions.find((action) => action.actionType === 'delete').enabledWhen, "aprvYn === 'Z'")
  assert.equal(contract.rowActions.find((action) => action.actionType === 'print').enabledWhen, null)
  assert.equal(contract.businessRules.collectionLimits[0].max, 15)
  assert.ok(contract.businessRules.dataSources.some((rule) => rule.ruleType === 'default-today'))
  assert.ok(contract.businessRules.validationRules.some((rule) => rule.ruleType === 'email'))
})

test('buildMaintenanceContract ignores non-vue guide text for primary entity', () => {
  const spec = buildSpec('/repo/prototype/venue/apply-room-print.html', `
    <main>
      <h1>場地申請表列印</h1>
      <input type="button" value="列印">
    </main>
  `)
  const contract = buildMaintenanceContract({
    route: {
      kind: 'feature-page',
      prototype: 'venue/apply-room-print.html',
      page: 'apply-room-print.html',
      guide: { targetView: 'M9 列印頁尚未實作，列出供下批補做' }
    },
    spec,
    apiMatches: [{ method: 'GET', path: '/service/api/v1/venue/applications/rooms/{appNo}/print-view', description: '取得場地申請列印資料' }]
  })

  assert.equal(contract.pageKind, 'print')
  assert.equal(contract.dataModel.primaryEntity, 'PrintView')
  assert.deepEqual(contract.capabilities, ['print'])
})

test('buildBddContract creates traceable auth scenarios from page evidence', () => {
  const spec = buildSpec('/repo/prototype/portal/login.html', `
    <main>
      <h1>使用者登入</h1>
      <form>
        <label>帳號</label><input name="account" required>
        <label>密碼</label><input name="password" type="password" required>
        <button>登入</button>
      </form>
    </main>
  `)
  spec.maintenanceContract = {
    pageKind: 'login',
    capabilities: ['custom'],
    dataModel: { primaryEntity: 'Login' },
    businessRules: { validationRules: [{ ruleType: 'required', text: '帳號與密碼必填' }] },
    rowActions: []
  }
  spec.prototypeGuide = {
    description: '使用者登入',
    checklist: ['登入失敗時顯示錯誤訊息'],
    flowRefs: [{ title: '登入流程', nodes: [{ nodeType: 'submit', action: '登入' }] }]
  }
  spec.apiContract = {
    endpoints: [{ method: 'POST', path: '/api/auth/login', usage: 'submit', description: '使用者登入' }]
  }

  const contract = buildBddContract(spec)
  const markdown = renderBddContract(spec, contract)

  assert.equal(contract.feature, '使用者登入')
  assert.equal(contract.scenarios[0].name, '使用者輸入正確帳密登入成功')
  assert.deepEqual(contract.scenarios[0].given, ['使用者已在使用者登入頁'])
  assert.deepEqual(contract.scenarios[0].when, ['使用者輸入正確的帳號與密碼並執行「登入」'])
  assert.ok(contract.scenarios[0].then.includes('系統應送出 POST /api/auth/login'))
  assert.deepEqual(contract.scenarios[0].evidence.fields, ['帳號', '密碼'])
  assert.deepEqual(contract.scenarios[0].evidence.checklist, ['登入失敗時顯示錯誤訊息'])
  assert.equal(contract.requiresHumanReview, true)
  assert.match(markdown, /Feature: 使用者登入/)
  assert.match(markdown, /Scenario: 使用者輸入正確帳密登入成功/)
  assert.match(markdown, /Then 系統應送出 POST \/api\/auth\/login/)
  assert.match(markdown, /## Evidence/)
})

test('buildBddContract creates query and row action scenarios with review warnings', () => {
  const spec = buildSpec('/repo/prototype/venue/applications-list.html', `
    <main>
      <h1>我的申請紀錄</h1>
      <form><label>狀態</label><select name="status"><option>審核中</option></select><button>查詢</button></form>
      <table>
        <tr><th>申請單號</th><th>狀態</th><th>操作</th></tr>
        <tr><td>A001</td><td>審核中</td><td><input type="button" value="修改"><input type="button" value="刪除"></td></tr>
      </table>
    </main>
  `)
  spec.maintenanceContract = {
    pageKind: 'maintenance',
    capabilities: ['search', 'edit', 'delete'],
    dataModel: { primaryEntity: 'ApplicationsList' },
    businessRules: { validationRules: [], statusRules: [{ ruleType: 'enabled-when-status', field: 'aprvYn', value: 'Z', text: 'aprvYn=Z 才可修改刪除' }] },
    rowActions: [
      { label: '修改', actionType: 'edit', enabledWhen: "aprvYn === 'Z'" },
      { label: '刪除', actionType: 'delete', enabledWhen: "aprvYn === 'Z'" }
    ]
  }
  spec.apiContract = {
    endpoints: [
      { method: 'GET', path: '/api/applications', usage: 'query', description: '查詢申請紀錄' },
      { method: 'DELETE', path: '/api/applications/{id}', usage: 'delete', description: '刪除申請' }
    ]
  }

  const contract = buildBddContract(spec)

  assert.equal(contract.scenarios[0].type, 'query')
  assert.deepEqual(contract.scenarios[0].then, ['系統應送出 GET /api/applications', '顯示符合條件的查詢結果'])
  assert.ok(contract.scenarios.some((scenario) => scenario.name === '符合狀態條件時可以修改資料列'))
  assert.ok(contract.scenarios.some((scenario) => scenario.name === '符合狀態條件時可以刪除資料列'))
  assert.ok(contract.warnings.some((warning) => warning.includes('Then')))
})

test('buildBddContract reports scenario candidates and uncovered evidence', () => {
  const spec = buildSpec('/repo/prototype/portal/login.html', `
    <main>
      <h1>使用者登入</h1>
      <form>
        <label>帳號</label><input name="account" required>
        <label>密碼</label><input name="password" type="password" required>
        <button>登入</button>
        <button>忘記密碼</button>
      </form>
    </main>
  `)
  spec.maintenanceContract = {
    pageKind: 'login',
    capabilities: ['custom'],
    dataModel: { primaryEntity: 'Login' },
    businessRules: { validationRules: [{ ruleType: 'required', text: '帳號與密碼必填' }] },
    rowActions: []
  }
  spec.prototypeGuide = {
    description: '使用者登入',
    checklist: ['登入失敗時顯示錯誤訊息', '連續錯誤三次鎖定帳號'],
    flowRefs: [{ title: '登入失敗流程', nodes: [{ nodeType: 'error', action: '顯示錯誤訊息' }] }]
  }
  spec.apiContract = {
    endpoints: [{ method: 'POST', path: '/api/auth/login', usage: 'submit', description: '使用者登入' }],
    errorHandling: { formats: [{ status: 401, description: '帳號或密碼錯誤' }] }
  }

  const contract = buildBddContract(spec)
  const markdown = renderBddContract(spec, contract)

  assert.ok(contract.candidateScenarios.some((candidate) => candidate.type === 'error-path'))
  assert.ok(contract.candidateScenarios.some((candidate) => candidate.source === 'api-error'))
  assert.ok(contract.uncoveredEvidence.some((item) => item.source === 'prototypeGuide.checklist' && item.text === '連續錯誤三次鎖定帳號'))
  assert.ok(contract.uncoveredEvidence.some((item) => item.source === 'pageContract.actions' && item.text === '忘記密碼'))
  assert.equal(contract.requiresHumanReview, true)
  assert.match(markdown, /## Candidate Scenarios/)
  assert.match(markdown, /登入失敗時顯示錯誤訊息/)
  assert.match(markdown, /## Uncovered Evidence/)
  assert.match(markdown, /連續錯誤三次鎖定帳號/)
})

function buildSpec(source, html) {
  const regions = extractRegions(html)
  const domSummary = summarizeHtml(html)
  const page = source.split('/').at(-1)
  return {
    source,
    page,
    pageContract: buildPageContract({
      page,
      source,
      html,
      regions,
      domSummary,
      screenshotPath: `.ht/cache/prototype/${page.replace(/\.html$/, '')}/desktop-default.png`
    })
  }
}